Server displayed empty after execution of AT+HTTPPACTION=1

Using Arduino Programming Questions
#1

Please help me.
i want send dynamic sensor value to server.So,i convert floating value to string through dtostrf command.
ex current=37.05

char buffer[20];
String value1=dtostrf(current,5,5,buffer);
String val=(value1);
Serial.println(val);

Serial monitor shows val=37.50007
then

mySerial.println("AT+HTTPPARA="URL","www.imkhalid.info/fazlu/data.php?a=""+val+"""");

delay(2000);
ShowSerialData();

but server shows empty.no data found.
please help me.

#2 
String val=(value1);

What a waste...

but server shows empty.no data found.

You assume that the AT command parameters are valid. Have you verified that that IS the case?

What do you you see if you enter http://www.imkhalid.info/fazlu/data.php?a=37.50007 in your browser's address bar?

#3

if i use this instruction

http://www.imkhalid.info/fazlu/data.php?a=37.50007

data shows in server

a=37.5007;

if i write a statement after a=

ex a=Fazlul then got data a=Fazlul

above instruction can not identify variable value.i don't know why.

#4

above instruction can not identify variable value.i don't know why.

What "above instruction"? You are trying to execute a PHP script that you have not shown us.

#5

i have done this.

http://www.imkhalid.info/fazlu/data.php?a=37.50007

php scripts shpws

a=37.50007

required

http://www.imkhalid.info/fazlu/data.php?a=dynamic value

i trying this method.here current is dynamic value.

char buffer[20];
String value1=dtostrf(current,5,5,buffer);
String val=(value1);
Serial.println(val);

mySerial.println("AT+HTTPPARA="URL","www.imkhalid.info/fazlu/data.php?a=""+val+"""");

php scripts shows empty

#6

problem solved

String one="a";
String thee=String(one+current);

mySerial.println("AT+HTTPPARA="URL","www.imkhalid.info/fazlu/data.php?a="+three+""");

#7